A new discovery in 2009 is the Tiernay auxiliary turbine, model TT10.

"Tiernay TT10"

-It remains to be seen whether this name belongs to the set and the turbine is a Solar or Garrett, etc.

“A Tiernay TT10 starting up on a bench”

“APU cart with Tiernay TT10-1”

From Appendix 12: Turbine engines for APP and APU equipment, i.e. auxiliary power sources for aviation.

“The Tiernay on both sides”

“Auxiliary turbine production line”

“Auxiliary power cart or APU”

-As I have mentioned several times, in this post or in my blog <aerospaceengines.blogspot.com>, the aviation mechanic -and especially the one who is stationed outside his base- must also maintain this equipment and the APUs, with similar technology both in piston and turbines. This does not escape his obligation.